Direct mail advertisers send solicitations​ ("junk mail") to thousands of potential customers in the hope that some will buy the​ company's product. The response rate is usually quite low. Suppose a company wants to test the response to a new flyer and sends it to 1020 people randomly selected from their mailing list of over​ 200,000 people. They get orders from 109 of the recipients.  A) ​Create a 90% confidence interval for the percentage of people the company contacts who may buy something.

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